Eliminate ash::internal namespace

ash/wm/session_state_animator.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ASH_WM_SESSION_STATE_ANIMATOR_H_
 #define ASH_WM_SESSION_STATE_ANIMATOR_H_
 
 #include "ash/ash_export.h"
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/timer/timer.h"
 #include "ui/aura/window.h"
 #include "ui/compositor/layer_animation_observer.h"
 
 namespace gfx {
 class Rect;
 class Size;
 }
 
 namespace ui {
 class Layer;
 }
 
 namespace ash {
-namespace internal {
 
 // Displays onscreen animations for session state changes (lock/unlock, sign
 // out, shut down).
 class ASH_EXPORT SessionStateAnimator {
  public:
   // Animations that can be applied to groups of containers.
   enum AnimationType {
     ANIMATION_PARTIAL_CLOSE = 0,
     ANIMATION_UNDO_PARTIAL_CLOSE,
     ANIMATION_FULL_CLOSE,
@@ skipping 131 matching lines @@
   // Apply animation |type| to window |window| with |speed| and add |observer|
   // if it is not NULL to the last animation sequence.
   void RunAnimationForWindow(aura::Window* window,
                              AnimationType type,
                              AnimationSpeed speed,
                              ui::LayerAnimationObserver* observer);
 
   DISALLOW_COPY_AND_ASSIGN(SessionStateAnimator);
 };
 
-}  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_WM_SESSION_STATE_ANIMATOR_H_